Cutting insert



FIG. 1 is a perspective view of a cutting insert showing our new design;

FIG. 2 is a top plan view of the cutting insert of FIG. 1, with the bottom view being a mirror image thereof; and,

FIG. 3 is a side view thereof, with the remaining side views being a mirror image thereof. 

The ornamental design for a cutting insert, as shown and described. 